I think you will have to check with both FL and CO state residency requirements. Usually, you have to physically be in one state for most of the year to maintain residency in said state. The exception as you said is when you temporarily leave to go to school. However, since you aren't going to CO for school, I don't know if this applies. You should check with FL to determine what you have to do to maintain state residency. And, you should check with CO to ensure that you aren't required to switch to CO state residency!
Note also that there are different requirements/definitions for residency when it comes to the DMV, tuition costs, taxes, and state benefits.
Movingly reacted to TakeruK in Should I change state residency?